<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>TestApi</title>
</head>
<body>
    <input type="text" id = "message">
    <button id = "submit">提交</button>
    <script>
        //创建 websocket 实例  注意路径要和后端对应
        let websocket = new WebSocket("ws://127.0.0.1:8080/test");
        //给实例挂载一些回调函数
        websocket.onopen = function () {
            console.log("连接建立");
        }

        websocket.onmessage = function (e) {
            console.log("收到消息：" + e.data);
        }

        websocket.onerror = function () {
            console.log("连接异常");
        }

        websocket.onclose = function () {
            console.log("连接关闭");
        }

        //点击按钮后，通过 websocket 发送请求
        let input = document.querySelector('#message');
        let button = document.querySelector('#submit');
        button.onclick = function () {
            console.log("发送消息：" + input.value);
            websocket.send(input.value);
        }
    </script>

</body>
</html>